40181073843 has 16 divisors (see below), whose sum is σ = 56813944320. Its totient is φ = 25172666496.

The previous prime is 40181073841. The next prime is 40181073893. The reversal of 40181073843 is 34837018104.

It is not a de Polignac number, because 40181073843 - 2¹ = 40181073841 is a prime.

It is a super-2 number, since 2×40181073843² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40181073841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575863 + ... + 641856.

It is an arithmetic number, because the mean of its divisors is an integer number (3550871520).

Almost surely, 2^40181073843 is an apocalyptic number.

40181073843 is a deficient number, since it is larger than the sum of its proper divisors (16632870477).

40181073843 is a wasteful number, since it uses less digits than its factorization.

40181073843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218386.

The product of its (nonzero) digits is 64512, while the sum is 39.

The spelling of 40181073843 in words is "forty billion, one hundred eighty-one million, seventy-three thousand, eight hundred forty-three".